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**High prevalence because of wide range of intermediate hosts, prolonged survival of larvae in faeces, long periods of patency (>2 years) and poor host immunity
**High prevalence because of wide range of intermediate hosts, prolonged survival of larvae in faeces, long periods of patency (>2 years) and poor host immunity
'''''Muellerius capillaris'''''
*''Muellerius capillaris'' common parasite of sheep and goats in [[Respiratory Parasitic Infections - Pathology#Muellerius capillaris| respiratory infections]]
*''Muellerius capillaris'' common parasite of sheep and goats in [[Respiratory Parasitic Infections - Pathology#Muellerius capillaris| respiratory infections]]
*Common in sheep and goats
*Rarely any clinical significance
*Grossly:
**Multifocal [[Lungs Inflammatory - Pathology#Interstitial pneumonia|interstitial]] [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] grossly evident as firm "lead-shot" nodules throughout the parenchyma, often with enveloping granulomatous response
**Early stages are reddish in colour, turning later to greyish green, may calcify
**Mostly in dorsal region of caudal lung lobes
*Histologically:
**Damaged alveolar septa with mild fibrous thickening and lymphocytic infiltrate
**In more developed host resistance, foci of eosinophils around larvae, hyperplastic epithelium, macrophages, giant cells
**May be some calcification
[[Category:Metastrongyloidea]]
[[Category:Metastrongyloidea]]
[[Category:To_Do_-_Parasites]]
[[Category:To_Do_-_Parasites]]